> I wonder if we could improve this with some sort of process-local > cache - not to get rid of hint bits, just to reduce pg_clog > contention. We might easily end up testing the same XID many times > during the same table scan.
I guess that's my scenario... not that many transactions, so even "copying" the whole pg_clog table in the per-process memory would be doable... -- Sent via pgsql-hackers mailing list (pgsql-hackers@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-hackers
